Why my JDBC UPdate hangs up??

Question

Hi, Sir::
I use following simple JDBC Update program to update my table TEST,
See following code:
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
// create table test(Test_ID number, Test_Val varchar(30));
public class Update {
  public static void main(String args[]) {
    Connection con = null;
    if (args.length != 2) {
      System.out.println("Syntax: <java UpdateApp [number] [string]>");
      return;
    try {
      String driver = "oracle.jdbc.driver.OracleDriver";
      Class.forName(driver).newInstance();
      String url = "jdbc:oracle:thin:@localhost:1521:usa";
      con = DriverManager.getConnection(url, "scott", "tiger");
      Statement s = con.createStatement();
      String test_id = args[0];
      String test_val = args[1];
      int update_count = s.executeUpdate("INSERT INTO test (test_id, test_val) "
              + "VALUES(" + test_id + ", '" + test_val + "')");
      s.executeUpdate("UPDATE test SET TEST_VAL= 'John Alan' WHERE TEST_ID=1");
      System.out.println(update_count + " rows inserted.");
      s.close();
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      if (con != null) {
        try {
          con.close();
        } catch (SQLException e) {
          e.printStackTrace();
           When I run with command:
C:\temp\javaCode>java Update 2 MyTest
It hangs here and did not process, If I remove the statement:
s.executeUpdate("UPDATE test SET TEST_VAL= 'John Alan' WHERE TEST_ID=1");
it works and insert 1 record into Test Table.
What is wrong here??
How to fix it??
Thanks
Sunny

Answer 1

Did you try with another Statement? I would try closing the first statement and creating a new one.
      Class.forName(driver).newInstance();
      String url = "jdbc:oracle:thin:@localhost:1521:usa";
      con = DriverManager.getConnection(url, "scott", "tiger");
      Statement s = con.createStatement();
      String test_id = args[0];
      String test_val = args[1];
      int update_count = s.executeUpdate("INSERT INTO test (test_id, test_val) "
              + "VALUES(" + test_id + ", '" + test_val + "')");
       // close it and create a new one
       s.close();
       s = con.createStatement();
      s.executeUpdate("UPDATE test SET TEST_VAL= 'John Alan' WHERE TEST_ID=1");
Let me know if it works.